JP6735989B2 - Computer lock system - Google Patents

Description

The present invention relates to a computer lock system, and more particularly to a computer lock system including a computer main body and a receiving antenna device externally connected to the computer main body.

[Conventional technology]

2. Description of the Related Art Conventionally, there has been known a control method or apparatus of a processing device that invalidates data input of a keyboard or a mouse when a specific user sits on or leaves the computer during operation. Examples of this include JP 2001-268655 A (Patent Document 1). This patent document 1 has a computer equipped with an antenna, a portable information terminal (PDA), a mouse, etc., and communicates with the portable information terminal via an antenna connected to a short-range wireless communication interface built in the computer. The configuration is disclosed. When a specific user possesses the portable information terminal and leaves the computer and becomes unable to communicate, data input using a keyboard, a mouse or the like is invalidated. Further, when the user carries and returns the portable information terminal, the portable information terminal is automatically released and returned to a reusable state.

Further, as another example, there is JP-A-2000-222059 (Patent Document 2).
In Patent Document 2, in an information processing apparatus configured by a POS main body having a portable wireless tag (RFID card or the like) and an antenna, an authorized user leaves the POS main body without performing an operation end process or an interruption process. Data entry is prohibited. It discloses a configuration that allows data entry when approaching and prevents unauthorized operation.

Further, as another example, there is JP-A-6-259160 (Patent Document 3). Patent Document 3 discloses a device in which a receiver for receiving ID information for receiving individual information is built in a computer body and a user having a transponder having an individual ID can recognize the ID only by approaching the user.

JP, 2001-268655, A JP-A-2000-222059 JP-A-6-259160

However, such safety systems also have weaknesses. For example, if a part of the safety system is frozen when the computer is unlocked, it may be locked in the frozen state and used illegally even if the proper unlock radio signal has not arrived. ..

As an example of the freeze, it is possible to give an attack to the program, but it is also possible to disable the function of the antenna to freeze the program. One example is to disconnect the antenna. This is because if the signal from the antenna is lost, it will not be possible to determine whether the source of the proper unlocking wireless signal has gone out of the communication area, or if it is within the communication area but the wireless function has been impaired. This is because the signal from the antenna does not reach, although the signal from the antenna is used for the determination. If this judgment cannot be made, the lock status of the computer is fixed, and the computer can be illegally used even if it is outside the communication range.

In order to solve these problems, even if some functions of the safety system fail, important parts of the safety system must continue to operate.

It is an object of the present invention to provide a computer lock system including a computer main body and a receiving antenna device externally connected to the computer main body, the computer lock system being able to keep safety even if the receiving antenna device is removed. ..

In order to solve the above problems, the present invention provides the following computer lock system. That is, the first invention is a computer lock system including a computer main body and a receiving antenna device externally connected to the computer main body, wherein the receiving antenna device wirelessly includes an antenna signal that can include noise and no signal. And an antenna signal output unit for outputting the received antenna signal to the computer main body, wherein the computer main body is an antenna signal for acquiring the antenna signal output from the antenna signal output unit. The display interface of the computer main body can be normally used for the acquisition unit signal which is a signal that includes the acquisition unit and the antenna signal from the antenna signal acquisition unit or does not include the antenna signal from the antenna signal acquisition unit. A determination unit that intermittently determines whether an unlock ID, which is an ID, is included, and an availability status that indicates whether the display interface of the computer body determined based on the acquisition unit signal is in a normally usable state The availability status information holding unit that holds the information and the availability status information of the availability status information holding unit are displayed on the computer main body when the result of the determination by the determination unit is the determination that the valid release ID is included. Availability status information that enables the interface to be in a normally usable state, and availability status information if the determination result of the determination section does not include a valid release ID The availability status information of the holding unit is set to an unusable status for making the display interface of the computer main unit in a state where the display cannot be normally used, and the availability status information holding unit holds the available status information. And a control unit for controlling the display interface based on the status information (corresponding to claim 1).

In addition to the above features, the antenna signal acquisition unit, the determination unit, the availability status information holding unit, the enabling unit, the disabling unit, and the control unit of the computer body are always in the operating state while the computer is operating. (Corresponding to claim 2).

In addition to the above characteristics, the antenna signal receiving unit and the antenna signal output unit of the receiving antenna device are always in operation when they are externally connected to the computer main body in operation (claim) Item 3).

In addition to the above characteristics, the computer main body operates in such a manner that the screen saver unit that outputs a screen saver screen when there is no input from the interface for a predetermined time, the operation of the control unit, and the operation of the screen saver unit conflict with each other. And a contention adjustment unit that gives priority to (corresponding to claim 4).

In addition to the above characteristics, if the result of the determination by the determination unit is that the valid release ID is not included, and the display interface of the computer body is in a state where the display cannot be normally used, the password input is accepted. It can be forcibly used when the password input acceptance part, the password judgment part for judging whether the password is correct, and the judgment result of the password judgment part are the correct password. An availability status fixing unit that fixes availability status information of the status information holding unit to the availability status is further included (corresponding to claim 5).

In addition to the above characteristics, when the availability status information is fixed to the availability status by the availability status fixing unit, the computer uses the antenna signal acquisition unit, the determination unit, and the disabling unit of the computer body. The display interface of the main body has a deactivating unit that deactivates the function so that the display cannot be normally disabled (corresponding to claim 6).

In addition to the above characteristics, the computer main body and the receiving antenna device externally connected to the computer main body are connected via a USB cable, and the antenna signal output unit of the receiving antenna device and the antenna signal acquiring unit of the computer main body are Signals are transferred by a USB cable, and the receiving antenna device is powered by this USB cable (corresponding to claim 7).

In addition to the above characteristics, the antenna signal receiving unit of the receiving antenna device is configured to receive a signal from a powerless RFID (corresponding to claim 8).

In addition to the above features, the computer main body includes an antenna signal from the antenna signal acquisition unit of the connected computer connected to the signal received via the network, or includes an antenna signal from the antenna signal acquisition unit. There is a network signal determination unit that intermittently determines whether or not the acquisition unit signal, which is a non-existing signal, includes an unlock ID that is an ID for keeping the display interface of the computer main body in a normally usable state, and a signal via a network determination If the result of the determination in the section is that the lock release signal is included, an interface signal in a state where the interface of the computer main body can be normally used is transmitted to the connected computer via the network. And an output unit (corresponding to claim 9).
A computer body provided with the computer lock system (corresponding to claim 10).

A second invention is a method of operating a computer main body of a computer lock system comprising a computer main body and a receiving antenna device externally connected to the computer main body, wherein the receiving antenna device wirelessly generates noise and no signal. An antenna signal receiving unit that receives an antenna signal that may be included, and an antenna signal output unit that outputs the received antenna signal to the computer main body, and the computer main body acquires the antenna signal output from the antenna signal output unit. The display interface of the computer main body can be normally used for the acquisition unit signal which is the signal including the antenna signal acquisition step for performing the antenna signal acquisition and the antenna signal in the antenna signal acquisition step or not including the antenna signal in the antenna signal acquisition step. A determination step for intermittently determining whether or not an unlock ID, which is an ID for establishing the state, is included, and whether or not the display interface of the computer main body determined based on the acquisition unit signal is in a normally usable state Availability status information holding step for always holding the availability status information indicating that the availability status information is stored in the availability status information holding section. In the case where the result of the enablement step that makes the information into an available status for making the display interface of the computer main body normally available and the result of the determination step does not include a valid release ID In the availability status information holding step, the availability status information is changed to an unusable step for making the display interface of the computer main body into an unusable status for making the display normally unusable, and the availability status information holding step. And a control step of controlling the display interface based on the available status information held by the computer.

A third invention is an operation program of a computer main body of a computer lock system comprising a computer main body and a receiving antenna device externally connected to the computer main body, wherein the receiving antenna device wirelessly generates noise and no signal. An antenna signal reception unit that receives an antenna signal that may be included, and an antenna signal output unit that outputs the received antenna signal to the computer main body, and the computer main body acquires the antenna signal output from the antenna signal output unit. State in which the display interface of the computer main body can be normally used for the acquisition unit signal that is the signal including the antenna signal acquisition step and the antenna signal in the antenna signal acquisition step or not including the antenna signal in the antenna signal acquisition step. And a determination step for intermittently determining whether or not an unlock ID, which is an ID, is included, and whether or not the display interface of the computer main body determined based on the acquisition unit signal can be normally used. The available status information holding step of always holding the available status information shown, and the available status information of the available status information holding unit when the result of the judgment in the judging step is a judgment result that includes a valid release ID If the result of the determination in the determination step is that it does not include a valid release ID, and the enablement step that makes the display interface of the computer body an available status for making the display interface normally usable. In the availability status information holding step, the availability status information in the availability status information holding step is set to an unusable status for making the display interface of the computer main body the display normally unavailable. A control step of controlling the display interface based on the held available status, and an operation program of a computer main body operated in (corresponding to claim 12).

According to the above configuration, in a computer lock system including a computer main body and a reception antenna device externally connected to the computer main body, it is possible to provide a computer lock system that can keep safety even if the reception antenna device is removed. it can.

The conceptual diagram of the computer lock system of Embodiment 1. Functional block diagram of the computer lock system of the first embodiment FIG. 3 is a diagram for explaining an acquisition unit signal in the antenna signal acquisition unit of the computer body of the first embodiment. The figure which shows the hardware structural example of the computer lock system of Embodiment 1. Processing flow chart of the computer lock system of the first embodiment FIG. 3 is a diagram for explaining the computer lock system according to the second and third embodiments. Functional Block Diagram of Computer Lock System of Embodiment 4 FIG. 11 is a diagram for explaining interface use in a conflicting state between the control unit and the screen saver unit of the computer lock system according to the fourth embodiment. The figure which shows the hardware structural example of the computer lock system of Embodiment 4. Process Flowchart of Computer Lock System of Embodiment 4 Functional Block Diagram of Computer Lock System of Embodiment 5 The figure which shows the hardware structural example of the computer lock system of Embodiment 5. Process Flowchart of Computer Lock System of Embodiment 5 Functional Block Diagram of Computer Lock System of Embodiment 6 The figure which shows the hardware structural example of the computer lock system of Embodiment 6. Process Flowchart of Computer Lock System of Embodiment 6 Functional Block Diagram of Computer Lock System of Embodiments 7 and 8 Conceptual diagram of network lock support for computer lock system of Embodiment 9 Functional Block Diagram of Computer Lock System of Embodiment 9 The figure which shows the hardware structural example of the computer lock system of Embodiment 9. Processing Flowchart of Computer Lock System of Embodiment 9 0100 Computer main body 0101 Antenna signal acquisition unit 0102 Judgment unit 0103 Availability status information holding unit 0104 Enablement unit 0105 Unusable unit 0106 Control unit 0110 Reception antenna device 0111 Antenna signal reception unit 0121 Antenna signal output unit 0201 CPU 0202 Non-volatile memory 0203 Main memory 0204 Interface 0205 Display interface 0206 Keyboard interface 0207 Network interface 0301 Antenna signal reception step 0302 Antenna signal output step 0303 Antenna signal acquisition step 0304 Unlock ID determination step 0305 Enablement step 0306 Disable step 0307 Control step 0407 Screen saver section 0408 Conflict adjusting section 0610 Conflict adjusting step 0611 Screen saver step 0707, 1007 Password input receiving section 0708, 1008 Password judging section 0709, 1009 Available status fixing section 0909, 1209 Password input receiving step 0910, 1210 Password judgment step 0911, 1211 Usable status information fixed step 1010 Deactivation section 1212 Deactivation step 1313 RFID 1407 Network via signal determination section 1408 Network via interface signal output section 1601 Network via signal determination step 1606 Network via interface signal Output step

Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to these embodiments, and may be implemented in various modes without departing from the scope of the invention.

The functional blocks of the present apparatus described below can be realized as a combination of hardware and software. Specifically, if a computer is used, CPU (central processing unit), main memory, system bus, or secondary storage device (hard disk drive, non-volatile memory, storage media such as CD or DVD, and those media) Read drive), hardware components such as input devices used for information input, display devices, antennas, and other external peripheral devices, and interfaces for the external peripheral devices, communication interfaces, RFIDs, and their hardware. Examples include a driver program for controlling the computer, other application programs, and user interface applications. Then, by the arithmetic processing of the CPU according to the program expanded on the main memory, the data etc. input from the input device or other interface and held in the memory or the hard disk are processed and accumulated, or the above hardware or Instructions for controlling software are generated. Alternatively, the functional blocks of this device may be realized by dedicated hardware. Further, the present apparatus is not limited to being configured by one piece of hardware or software, and may be configured by a combination of a plurality of pieces of hardware or software, or may be configured by including a server apparatus via a network.

The present invention can be realized not only as an apparatus but also as a method. Further, a part of such an invention can be configured as software. Further, a program used for causing a computer to execute such software and a recording medium having the program fixed are naturally included in the technical scope of the present invention (the same applies throughout the present specification).
<Embodiment 1>
<Overview>

As shown in FIG. 1, the computer lock system includes a computer main body 0100 and a receiving antenna device 0101 externally connected to the computer main body 0100. For example, a user who logs in to the computer and works (FIG. 1, left view). ) Automatically locks the computer interface (display interface, etc.) when the user leaves the seat (Fig. 1, right), and when the user returns to the seat and approaches the antenna signal from the receiving antenna device 0101. The system is configured to be automatically unlocked when the included unlock ID is received. In FIG. 1, as other hardware, a display 0102 and a keyboard 0103 used by the user during work are shown. The display screen on the left side of FIG. 1 shows the screen during work, and the display screen on the right side of FIG. 1 shows the computer lock screen. Further, the unlock ID may be a non-powered RFID possessed by the user.
<Structure of Embodiment 1>

As shown in FIG. 2, the computer lock system according to the first embodiment is a computer lock system including a computer main body 0200 and a receiving antenna device 0210. The receiving antenna device 0210 includes an antenna signal receiving unit 0211 and an antenna signal. The computer body 0200 includes an output unit 0212, an antenna signal acquisition unit 0201, a determination unit 0202, an availability status information holding unit 0203, an enablement unit 0204, an unusable unit 0205, and a control unit. And 0206.
<Description of Configuration of First Embodiment>
<Embodiment 1 receiving antenna device>

The “reception antenna device” 0210 is externally connected to the computer main body 0200, and a user who is logged in to the computer is working while working at a company or the like (left figure in FIG. 1), and leaves the seat during the work ( When the user moves beyond the effective communication range with the receiving antenna device (right figure in FIG. 1), communication with the user who possesses the unlock ID becomes impossible and the computer is automatically locked. That is, the lock screen is displayed while leaving the seat as shown in the right diagram of FIG. Next, when the user approaches or returns to the seat, that is, when the user comes within the effective communication range of the receiving antenna device, the unlock ID owned by the user (for example, built in the card or the wireless tag owned by the user) The computer has a function of receiving a lock release ID for releasing the lock from the unusable state by locking the computer from the received antenna signals. For the computer connected to the receiving antenna device, the antenna signal output unit of the receiving antenna device may output an ID for recognizing itself.
<Embodiment 1 Antenna signal receiving unit>

The “antenna signal receiving unit” 0111 wirelessly receives an antenna signal which may include noise and no signal. For wireless antenna signals, power-less RFID, short-range wireless communication, etc. can be used. The received antenna signal includes noise and no signal, and also includes the unlock ID described above.
<Embodiment 1 Antenna signal output unit>

The “antenna signal output unit” 0212 outputs the received antenna signal to the computer main body 0200. The output of the antenna signal output unit 0212 is input to the antenna signal acquisition unit 0201 of the computer main body 0200. The antenna signal may include the unlock ID or may not include the unlock ID. The ID to be recognized by the connected computer may be output from the antenna signal output unit.
First Embodiment Computer Main Body

The “computer body” 0200 corresponds to a computer, a notebook PC, a tablet PC, or the like, and the display may be a display separate from the computer, or may be a lock of a display interface integrated with the PC. For computer work, in a work environment where multiple users, such as a company, city hall, or public institution, work, the system locks the computer without making any settings even if you leave your seat during work. There is. Further, when returning to the seat, the lock of the computer is unlocked when the antenna signal includes the unlock ID possessed by the user via the receiving antenna device 0210 externally connected to the computer main body 0200. can do. Here, the effective communication range (effective communication range) between the receiving antenna device externally connected to the computer main body and the user (having the unlock ID) is set within a range of 1 to 2 meters. It is convenient for the receiving antenna device to be configured so that the effective communication range (effective communication range) can be changed by an operation from the connected computer body. When the transmission is used for receiving the unlock ID, the transmission strength may be increased or decreased, and in the case of the reception, the reception sensitivity may be adjusted. For example, the effective communication range (effective communication range) may be set to 1 meter or less when the installation intervals of the computers are as narrow as less than 1 meter.
<Embodiment 1 Antenna signal acquisition unit>
The “antenna signal acquisition unit” 0201 acquires the antenna signal output from the antenna signal output unit 0212. The antenna signal acquisition unit 0201 acquires an antenna signal and a non-antenna signal as shown in FIG. 3 described later.
<Embodiment 1 Judgment Unit>

The “determination unit” 0202 includes the antenna signal from the antenna signal acquisition unit 0201 or the acquisition unit signal which is a signal not including the antenna signal from the antenna signal acquisition unit 0201 (non-antenna signal), and the display interface of the computer main unit 0200 It is intermittently determined whether or not the lock release ID, which is an ID for making the device normally usable, is included.

As shown in FIG. 3, the acquisition unit signal described above includes an antenna signal and a non-antenna signal that does not include the antenna signal. The form of the acquisition unit signal may be only the antenna signal (A) or only the non-antenna signal (B). The case of only the antenna signal (A) may include the case of only the unlock ID (A-1), or the case of including the unlock ID (A-1) and other signals (A-2). When both the antenna signal (A) and the non-antenna signal (B) are included, only the unlock ID (A-1) and the unlock ID and other signals (A-1, A-2) are further included. May be included.
The unlock ID of the antenna signal (A) and other signals include the acquisition unit ID with antenna ID. Further, the non-antenna signal includes the acquisition unit ID without the antenna ID.
Here, the non-antenna signal also includes a weak current generated at the receiving antenna insertion port of the computer main body when the receiving antenna device is not connected. Therefore, the determination unit or each unit that uses the determination result of the determination unit is configured to continue to function even if it is determined that the acquired signal does not include the antenna ID and a part of the computer lock system is malfunctioning. The other signals of the antenna signal include a determination unit and a parameter changeable key for changing parameters of each unit such as the enablement status holding unit, the enablement unit, the disablement unit, and the control unit. It may be configured as follows. It is conceivable that the determination unit is also responsible for determining whether or not the parameter change enable key is included, and that the parameter of each unit can be changed from the interface of the computer main body. The unlocking ID can be given as a parameter of the determination unit, and the status itself, the valid period of the available status, the history accumulation period of the available status, etc. can be given as a parameter of the available status holding unit. As the parameters of the enabling unit and the disabling unit, which availability status holding unit has the available status and the unavailable status when there are a plurality of available status holding units can be mentioned. The case where there are a plurality of usable status holding units means that there are a plurality of login users registered in the OS (available files and databases available according to login users, available external connection devices, available networks, Available applications are different). In this case, when the unlock ID of Mr. A is acquired, the user can log in to Mr. A and use the computer body normally, but use it so as not to affect the login of other users. To be done. The parameter of the control unit is in the case of selecting the type of the display interface to be controlled. For example, if multiple displays are connected to a single computer, configure all the displays so that they can be operated normally, or only some of the displays can be operated normally. This is the case where it is possible to select whether to configure. It is also possible to control the display interface so that it is controlled differently depending on time and time.

Since the determination unit 0202 intermittently determines the antenna signal and the non-antenna signal based on such an acquisition unit signal, even if the receiving antenna device externally connected to the computer main body is removed, it is not affected, The computer can be locked and unlocked based on the acquirer signal.

For example, when the computer is locked and the display interface is in an unusable state, when the determining unit 0202 determines that the unlock ID is included, the enabling unit 0204 uses the available status information holding unit 0203. The available status information is set as the available status, and the computer is unlocked under the control of the control unit 0206. At this time, if the unlock ID is not included, the computer is kept locked. It is desirable that the operation of the determination unit be performed intermittently. The intermittent time interval is selected depending on the work content, but for normal work, it may be set at a time of several seconds to several tens of seconds. The computer main body may be provided with a time interval adjustment unit for adjusting an intermittent time interval.
<Embodiment 1 available status information holding unit>

The “usable status information holding unit” 0203 holds available status information indicating whether or not the display interface of the computer main body 0200 determined based on the acquisition unit signal is in a normally available state. The state in which the display interface can be normally used refers to a state in which data can be input using a keyboard or mouse connected to the computer body and work instructions can be given using a mouse cursor. However, since it is designed so that the cursor can be moved and the keys can be operated to enter the password on the lock screen even in the locked state, the state in which this operation can be performed is not referred to as a normally usable state.
<Embodiment 1 availability unit>

If the determination result of the determination unit 0202 is a determination result that a valid release ID is included, the “usability enabling unit” 0204 transfers the availability status information of the availability status information holding unit 0205 to the display interface of the computer main unit 0200. Is set as an available status to make it normally available.
<Embodiment 1 disabling unit>

When the determination result of the determination unit 0202 indicates that the valid release ID is not included, the “unusable unit” 0205 displays the availability status information of the availability status information holding unit 0203 on the display of the computer main unit 0200. The interface puts the display in an unusable status to make it normally unavailable.
<Embodiment 1 control unit>

The “control unit” 0206 controls the display interface based on the available status information held in the available status information holding unit 0203. If the available status information is the available status, the control unit 0206 controls the display interface to be normally available. If the usable status information is the unusable status, the display interface is set to the normally unusable state. The lock screen is a state in which a screen that is configured to accept a password input and be unlocked is not normally available. This is because normal work cannot be started immediately when the display interface has only the password acceptance function. However, the lock screen is not limited to this, and the lock screen may be configured so as not to accept the input of the password. In that case, the input of the mouse, the input of the keyboard, and the input of the cursor are not accepted.

In the computer lock system as described above, the receiving antenna device 0210 is detachably connected to the computer main body 0200, and even if the receiving antenna device 0210 is removed from the computer main body while the computer is locked, the computer main body 0200 is described above. Since the antenna signal and the non-antenna signal are determined based on such an acquisition unit signal, safety can be maintained. That is, it is possible to maintain safety without being affected by removing or not removing the receiving antenna device from the computer main body.

Even if the receiving antenna device is replaced with another antenna receiving device, it cannot be used by a third party.
<Embodiment 1 Operation: Hardware configuration (computer body)>

As shown in FIG. 4, the configuration of the computer of the computer main body includes a CPU 401, a non-volatile memory 0402 such as an HDD and a ROM, a main memory 0403 such as a D-RAM, and an interface 0404. The nonvolatile memory 0402 stores programs such as an antenna signal acquisition program, a determination program, an availability status information holding program, an availability program, an unavailable program, and a control program. The data includes an antenna signal, an unlock ID, availability status information, and the like. These programs and data are read into the holding area of the main memory 0403 and executed in the work area. The interface 0404 includes a display interface 0405, a keyboard interface 0406, a network interface 0407, and the like.
<First Embodiment Process Flow Reception Antenna Device>

As shown in the diagram on the right side of FIG. 5, the operation of the receiving antenna device executes an antenna signal receiving step of wirelessly receiving an antenna signal which may include noise and no signal by an antenna receiving program (step 0501). This antenna signal is, for example, a signal from a powerless RFID or the like. The computer body side determines whether the unlock ID is included.

Next, an antenna signal output step of outputting the antenna signal received by the antenna signal output program to the computer main body is executed (step 0502). By this processing, the antenna signal is input to the externally connected computer main body.
<First Embodiment Process Flow Computer Main Body>

As shown in the left diagram of FIG. 5, the operation of the computer main body as described above is performed by an antenna signal acquisition program for acquiring an antenna signal output from the antenna signal output unit 0212 of the receiving antenna device. Is executed (step 503).

Next, according to the determination program, the display interface of the computer main body is set to a normally usable state for the acquisition unit signal that includes the antenna signal in the antenna signal acquisition step 0503 or does not include the antenna signal in the antenna signal acquisition step. A determination step of intermittently determining whether or not the lock release ID, which is an ID for the purpose, is executed (step 0504). Here, the intermittent judgment operation is set within a few seconds to a few tens of seconds in the case of normal work.

Next, if the result of the determination made in the determination step 0504 by the enablement program is that the release ID is valid, the display interface of the computer body normally displays the available status information of the available status information holding unit. An enablement step of setting an available status to make it available is executed (step 0505).

Here, availability status information indicating whether or not the display interface of the computer main body, which is determined by the availability status information holding program based on the acquisition unit signal, is normally held is always held. Therefore, it is changed to the available status and held by the enabling step. Further, the unlock ID and the login user information of the computer body are held in association with each other. If you have multiple computers, you can set the login release ID individually, but in an environment where the computer is used in shared settings, you can use one lock release ID for each other or Multiple unlock IDs can be set. Further, it is desirable to set another unlock ID to make it usable even if the user in charge of the computer body at a company or public organization takes a rest.

Next, when the determination result in the determination step 0504 is a determination result that the valid release ID is not included, the display interface of the computer main body 0200 normally displays the available status information in the available status information holding step on the display. An unavailability step of setting the unavailable status to the unusable state is executed (step 0506).

Here, when the ID is not the unlock ID, it means that the lock state is continuously maintained when the lock state is set, and a security measure can be taken for a computer that is not associated with the computer body in a corresponding relationship. Therefore, the display interface cannot be used as it is. The unavailable status information is held in the available status information holding unit.

Next, a control step of controlling the display interface based on the available status information held in the available status information holding unit by the control program is executed (step 0507).

When the user does not finish using the computer (step 0508), the above-described processing is returned to the antenna signal acquisition step and repeated. Further, when the use of the computer is ended (step 0508), for example, when the power of the computer is turned off, the processing is ended.
When the power of the computer is turned on again, the computer lock system is activated, and the locked state and the unlocked state are automatically set based on the unlock ID and user status information assigned to the computer without any user operation. Controlled.

As described above, according to the first embodiment, in the computer lock system including the computer main body and the receiving antenna device externally connected to the computer main body, a computer lock system that can maintain safety even if the receiving antenna device is removed. Can be provided.
<Embodiment 2>
<Overview>

The second embodiment is a computer lock system based on the first embodiment and characterized in part. In the second embodiment, the antenna signal acquiring unit 0201, the determining unit 0202, the availability status information holding unit 0203, the enabling unit 0204, the disabling unit 0205, and the control unit 0206 of the computer main body 0200 are It is characterized in that it is configured so that it is always in operation while the computer is operating.
<Second Embodiment Configuration>

As shown in FIG. 2, the computer lock system according to the second embodiment is a computer lock system including a computer main body 0200 and a receiving antenna device 0210. The receiving antenna device 0110 includes an antenna signal receiving unit 0211 and an antenna signal. The computer body 0200 includes an output unit 0212, an antenna signal acquisition unit 0201, a determination unit 0202, an availability status information holding unit 0103, an enablement unit 0204, an unusable unit 0205, and a control unit. 0206, and the antenna signal acquisition unit 0201, the determination unit 0202, the availability status information holding unit 0203, the enablement unit 0204, the disablement unit 0205, and the control unit 0206 of the computer main body 0200. , Are configured so that they are always in operation while the computer is operating.
<Embodiment 2 Explanation of Configuration/Operation>

As shown in FIG. 6, in the case (CASE) 1, in this case, when the power of the computer main body is turned on (when the computer is operating), the computer lock system is always turned on and the antenna signal acquisition unit of the computer main body is turned on. 0201, the determination unit 0202, the availability status information holding unit 0103, the enablement unit 0204, the disablement unit 0205, and the control unit 0206 are in the operating state. For example, when such a function of the computer lock system is realized by software, the software of the computer lock system is installed as an application and resides on the OS of the computer main body. Then, since the power of the computer main body is turned on and the determination unit 0202 determines the acquisition unit signal of the antenna signal acquisition unit 0201 of the computer main body, the computer lock system operates normally. Further, when the power of the computer main body is turned off, the computer lock system is also turned off. That is, the antenna signal acquisition unit 0201, the determination unit 0202, the availability status information holding unit 0103, the enablement unit 0204, the disabling unit 0205, and the control unit 0206 of the computer main body are in the inoperative state. .. The computer lock system is also turned on and off in conjunction with turning on and off the power of the computer body.

As shown in FIG. 6, in the case (CASE) 2, the case where the receiving antenna device is connected or not connected to the computer main body is shown. When the power of the computer main body is turned on when the receiving antenna device is externally connected to the computer main body, the computer lock system is always turned on. That is, the antenna signal acquisition unit 0201, the determination unit 0202, the availability status information holding unit 0103, the availability unit 0204, the unavailability unit 0205, and the control unit 0206 of the computer main body are activated. Even if the antenna is externally connected, when the power of the computer main body is turned off, the computer lock system is also turned off. That is, the antenna signal acquisition unit 0201, the determination unit 0202, the availability status information holding unit 0103, the enablement unit 0204, the disabling unit 0205, and the control unit 0206 of the computer main body are in the inoperative state. ..

Even when the antenna is off (the receiving antenna device is removed), when the power of the computer main body is turned on, the computer lock system is turned on and is in an operating state. That is, it operates even if there is no application start instruction. When the power of the computer is turned off with the antenna off, the computer lock system turns off and the lock control operation ends. The computer lock system continues to operate even if the antenna is pulled out while the computer is powered on.

As described above, according to the second embodiment, in addition to the first embodiment, the computer is always operating while the computer is in operation, whether or not the receiving antenna device is externally connected. Security can be maintained continuously.
<Embodiment 3>
<Overview>

The third embodiment is based on the first or second embodiment, and is a computer lock system having some features. The third embodiment is characterized in that the receiving antenna device is always in an operating state when the receiving antenna device is externally connected to the operating computer main body.
<Third Embodiment Configuration>

As shown in FIG. 2, the computer lock system according to the third embodiment is a computer lock system including a computer main body 0200 and a receiving antenna device 0210. The receiving antenna device 0210 includes an antenna signal receiving unit 0211 and an antenna signal. The computer body 0200 includes an output unit 0212, an antenna signal acquisition unit 0201, a determination unit 0202, an availability status information holding unit 0203, an enablement unit 0204, an unusable unit 0205, and a control unit. 0206, and the antenna signal receiving unit 0211 and the antenna signal output unit 0212 of the receiving antenna device 0210 are always in an operating state when they are externally connected to the computer main unit 0200 in operation. It is configured.
<Explanation of Configuration/Operation of Third Embodiment>

The description of the configuration and operation of the third embodiment has been described in detail in the description of the case (CASE) 2 of FIG. 6 of the second embodiment, and thus the description thereof is omitted.

In the third embodiment, since the reception antenna device 0210 externally connected to the computer main body 0200 is supplied with power from the antenna signal acquisition 0201 of the computer main body 0200, the reception antenna device does not have an OFF switch. That is, the receiving antenna device does not have a function of turning off the power by itself.

In the example of the third embodiment described above, the receiving antenna device has a configuration without a power source. However, when the computer main body is driven by a battery of a notebook computer or when a small tablet is used, when the power supply capacity is insufficient, reception is performed. A configuration in which an external power source is supplied to the antenna device may be adopted, or a battery, a rechargeable secondary battery such as a lithium ion battery or a nickel hydride battery may be used internally.

As described above, according to the third embodiment, in addition to the first or second embodiment, the power is always supplied when the receiving antenna device is connected to the computer main body, so that the antenna signal of the receiving antenna device is supplied. Since the receiving unit and the antenna signal output unit are always in the operating state, the computer lock and the unlock are continuously performed.
<Embodiment 4>
<Overview>

The fourth embodiment is a computer lock system which is partially based on the first to third embodiments. The fourth embodiment is characterized in that it has a competition adjustment function between the screen saver and the computer lock system.
<Embodiment 4 configuration>

As shown in FIG. 7, the computer lock system according to the fourth embodiment is a computer lock system including a computer main body 0700 and a receiving antenna device 0710. The receiving antenna device 0710 includes an antenna signal receiving unit 0711, an antenna signal The computer main body 0700 includes an output unit 0712, an antenna signal acquisition unit 0701, a determination unit 0702, an availability status information holding unit 0703, an enablement unit 0704, an unusable unit 0705, and a control unit. 0706, and further has a screen saver unit 0707 and a competition adjustment unit 0708.
<Embodiment 4 Configuration Description>
<Embodiment 4 Screen saver section>

The “screen saver unit” 0707 outputs the screen saver screen to the display when there is no input from the interface for a predetermined time. Examples of the interface include keyboard input and mouse input. If there is no such input for a predetermined time, a screen saver screen is output. Usually, it is possible to set several minutes to several tens of minutes by user setting. When the screen saver is used for the purpose of locking so that the user cannot access the computer without permission when the user is away from the desk, it is likely that the screen saver is set to about several minutes. For example, if the OS of the computer is a Windows (registered trademark) personal computer (Windows 10, Windows 8.1, Windows 7, etc.), display the control panel screen and select Customize desktop → Personal settings to set the screen saver. .. If you check "Return to logon screen when restarting" on the screen saver screen, interrupt the screen saver (for example, interrupt the interface input such as moving the mouse or performing key input on the keyboard) for input work etc. When I try to go, I get a logon screen and ask for a password.
If the screen saver is not set, the screen saver screen will not be displayed, so there will be no problem with this computer lock system. If the above-mentioned "return to the logon screen when resuming" is checked, there is a risk of conflict with the computer lock system, so it is necessary to consider conflict between the operation of the control unit 0706 and the operation of the screen saver unit 0707. ..
<Embodiment 4 Competition Adjustment Unit>

The “competition adjustment unit” 0708 gives priority to the operation of the control unit 0706 when the operation of the control unit 0706 conflicts with the operation of the screen saver unit 0707. The operation of the screen saver unit includes both a screen saver screen display operation and a logon screen display operation when work is resumed.

As shown in FIG. 8, the use of the interface when the operation of the control unit and the operation of the screen saver unit conflict with each other will be described. The interface use OK in FIG. 8 means (1) the case where the screen saver is not activated and (2) the case where the screen saver is activated but no password input is required.

When the operation of the screen saver unit is OK and the operation of the control unit is OK, the interface use is OK. Even if the operation of the screen saver unit is NG (when the screen saver unit determines that the screen saver screen display operation or the logon screen display operation should be performed), if the operation of the control unit is OK, the interface use is OK, and the control is performed. The operation of the department is prioritized. Even if the operation of the screen saver is OK (when the screen saver judges that the screen saver screen display operation or the logon screen display operation should not be performed), if the operation of the controller is NG, the operation of the controller takes precedence. Then, the interface usage becomes NG. If the operations of the screen saver unit and the control unit are both NG, the interface use is also NG.

The computer lock system operates as described above.
Other configurations are the same as the configurations of the first embodiment shown in FIG.
<Embodiment 4 Action: Hardware configuration (computer body)>

As shown in FIG. 9, the configuration of the computer of the computer main body is as follows: CPU 901, nonvolatile memory 0902 such as HDD and ROM, main memory 0903 such as D-RAM, interface 0904, display interface 0905, keyboard interface 0906, It is composed of a network interface 0907. The nonvolatile memory 0902 stores programs such as a screen saver program and a competition adjustment program. The data includes an antenna signal, an unlock ID, availability status information, and the like. These programs and data are read into the holding area of the main memory 0903 and executed in the work area. The other programs are the same as those in the configuration of the first embodiment shown in FIG.
<Fourth Embodiment Process Flow Reception Antenna Device>

As shown in the right diagram of FIG. 10, when the antenna signal receiving step 1001 and the antenna signal outputting step 1002 are executed, the antenna signal from the receiving antenna device 0710 is input to the computer main body 0700 which is externally connected. The processes of the antenna signal reception step 1001 and the antenna signal output step 1003 are the same as the antenna signal reception step 0501 and the antenna signal output step 0502 of FIG. 5 of the first embodiment, and thus detailed description thereof will be omitted.

<Embodiment 4 Process Flow Computer Main Body>

As shown in the left diagram of FIG. 10, the operation of the computer main body as described above is performed by performing an antenna signal acquisition step 1003, a determination step 1004, an enablement step 1005, an disablement step 1006, and a control step 1007. Determines whether the acquisition unit signal from the antenna signal acquisition unit 0701 includes the unlock ID as shown in FIG. 3 (step 1004), and the enabling step 1005 and the disabling step 1006 are executed. Then, the available status or the unavailable status of the available status information holding unit 0703 is always held as the available status information. Since the processing of processing steps 1003 to 1007 is the same as the processing of processing steps 0503 to 0507 of FIG. 5 of the first embodiment, detailed description thereof will be omitted.

In the state as described above, a screen saver activation timing determination step of determining whether it is a screen saver activation timing is executed (step 1008). As a result of the determination in the screen saver activation timing determination step 1008, in the case of the screen saver activation timing, the operation with the control program conflicts with the operation of the screen saver program. .. Here, the screen saver activation timing is the timing when the screen saver unit determines that the screen saver should be activated from the state where the screen saver is not activated, the screen saver is already activated, and the operation of the screen saver continues. It also includes the timing to determine whether to do it. The activation of the screen saver includes the operation of displaying the logon screen in addition to the operation of displaying the screen saver.

A screen saver activation determination step is performed to determine whether to activate the screen saver in response to the result of the adjustment in the conflict adjustment step (step 1010). If the activation state of the screen saver is recognized in the conflict adjustment step, the screen saver step is executed (step 1011). The screen saver step displays the screen saver on the display or displays the logon screen on the display. If the screen saver does not start, let the control unit control it. After the activation state of the screen saver or after the control is entrusted to the control unit, a use end determination step is executed (step 1012).

When it is not determined that the use is ended in the use end determination step, the process returns to the antenna signal acquisition step again. There are two ways of returning: returning to the antenna signal acquisition step with the screen saver activated, and returning to the antenna signal acquisition step without the screen saver activated. The case where the screen saver is activated is the case where the control unit makes the display interface normally unavailable based on the unavailable status, which is the status in the usage status information, as long as the control status continues. The contention adjustment step of continuing the screen saver in the activated state or making the control state available to the normal display interface is repeatedly executed. When the determination unit determines that the unlock ID is included in the acquisition unit signal while the screen saver is continuing, the enablement unit changes the availability status information to the availability status, and accordingly, the conflict adjustment unit. Adjusts the competition so that the display interface can be normally used by giving priority to the control of the control unit even when the screen saver cancellation is not determined by the screen saver unit. Along with this, the screen saver activation determination determines that the screen saver has not been activated, that is, the screen saver has ended, and the display becomes available in the normal use state.

The above processing is repeated until the user finishes using the computer (step 1012).

As described above, according to the fourth embodiment, in addition to the first to third embodiments, when the screen saver of the Windows (registered trademark) personal computer and the computer lock system compete with each other, the control of the lock system is prioritized. User-friendly security can be maintained.
<Fifth Embodiment>
<Overview>

The fifth embodiment is a computer lock system based on any one of the first to fourth embodiments and characterized in part. In the fifth embodiment, when the display interface is normally unavailable (the computer is locked), the availability status information is available when the correct password is accepted even if the unlock ID is not included in the acquisition unit signal. It is characterized in that it is fixed to the status.
<Embodiment 5 configuration>

As shown in FIG. 11, the computer lock system according to the fifth embodiment is a computer lock system including a computer main body 1100 and a receiving antenna device 1110. The receiving antenna device 1110 includes an antenna signal receiving unit 1111 and an antenna signal. The computer main body 1100 includes an output unit 1112, an antenna signal acquisition unit 1101, a determination unit 1102, an availability status information holding unit 1103, an enablement unit 1104, an unusable unit 1105, and a control unit. 1106, and further includes a password input reception unit 1107, a password determination unit 1108, and an available status fixing unit 1109.
<Embodiment 5 Configuration Description>
<Embodiment 5 Password input acceptance unit>

The “password input acceptance unit” 1107 is a result of the determination by the determination unit 1102 that it does not include a valid release ID, and when the display interface of the computer main body 1100 cannot normally use the display. , Determine whether the password input is accepted. For example, when a password is input from a keyboard connected to the computer body or a software keyboard displayed on the touch screen of the tablet PC, the process proceeds to the process of the password determination unit 1108.
<Embodiment 5 Password judgment unit>

The “password determination unit” 1108 determines whether the password is a correct password. Here, for example, if the computer main body is a Windows (registered trademark) personal computer, and if it is the same as that set as the login password of the corresponding computer, the password is judged to be normal.
<Embodiment 5 Available status fixed part>

The “usable status fixing unit” 1108 forcibly uses the available status information of the available status information holding unit 1103 when the result of the judgment by the password judgment unit 1108 is the judgment that the password is a correct password. Fixed to possible status.
That is, if the password is normal, the computer lock system fixes the available status information of the available status information holding unit 1103 from the unavailable status to the available status. The computer display interface is ready for normal use. This is because an emergency evacuation measure is necessary in the event that the source of the lock release ID is broken or the source of the lock release ID is lost. Therefore, it is preferable that the password be kept secret by a person having a high authority such as a system administrator of the company. In addition, if you use the password once to unlock the password and then intermittently determine whether or not to acquire the unlock ID, there is a problem that the unlocked state can be maintained for only a few seconds. It becomes impossible to operate a computer. Therefore, when the password is used for unlocking, the normal processing such as determination of acquisition of unlock ID is stopped and the status of the always available status information is fixed to the available status. Other configurations are the same as the configurations of the first embodiment shown in FIG.
<Embodiment 5 Action: Hardware configuration (computer body)>

As shown in FIG. 12, the configuration of the computer of the computer main body includes a CPU 1201, a nonvolatile memory 1202 such as an HDD and a ROM, a main memory 1203 such as a D-RAM, an interface 1204, a display interface 1205, a keyboard interface 1206. It comprises a network interface 1207. The non-volatile memory 1202 stores programs such as a password input acceptance program, a password judgment program, and an availability status fixing program. The data includes an antenna signal, an unlock ID, availability status information, and the like. These programs and data are read into the holding area of the main memory 1203 and executed in the work area. The other programs are the same as those in the configuration of the first embodiment shown in FIG.
<Fifth Embodiment Process Flow Reception Antenna Device>

As shown in the diagram on the right side of FIG. 13, when the antenna signal receiving step 1301 and the antenna signal outputting step 1302 are executed, the antenna signal from the receiving antenna device 1110 is input to the computer main body 1100 which is externally connected. The processes of the antenna signal receiving step 1301 and the antenna signal outputting step 1302 are the same as the antenna signal receiving step 0501 and the antenna signal outputting step 0502 of FIG. 5 of the first embodiment, and thus detailed description will be omitted.
<Fifth Embodiment Process Flow Computer Main Body>

As shown in the left diagram of FIG. 13, the operation of the computer main body as described above is to execute the antenna signal acquisition step 1303, the determination step 1304, the enablement step 1305, the disablement step 1306, and the control step 1307. According to this, it is determined whether or not the acquisition unit signal from the antenna signal acquisition unit 1101 as shown in FIG. 3 includes the unlock ID (step 1304), and the enabling step 1305 and the disabling step 1306 are executed. Then, the available status or unavailable status of the available status information holding unit 1103 is always held as available status information. Since the processing of processing steps 1303 to 1307 is the same as the processing of processing steps 0503 to 0507 of FIG. 5 of the first embodiment, detailed description thereof will be omitted.

Under the lock control of control step 1307 in the above-described state, a step of determining whether or not the display interface of the computer main unit cannot use the display normally is executed (step 1308). If it is not in the unusable state (step 1308), the process returns to the antenna signal acquisition step 1303.

If the display interface of the computer body is in a state where the display cannot be normally used (unusable state) (step 1308), a password input reception step is performed by the password input reception program to judge whether or not the password input is received (step 1308). 1309).
Next, a password judgment step for judging whether the password is a correct password is executed by the password judgment program (step 1310).
Next, if the judgment result in the password judgment step 1310 is a judgment result that the password is a correct password, the availability status information of the availability status information holding unit can be forcibly used by the availability status information fixing program. An available status fixing step of fixing the status is executed (step 1311).
Next, control is passed to the lock control process in the control program (step 1312), but the control unit performs the process based on the available status. However, since the available status information is fixed at the available status, the computer is used. The display is controlled so that it can be used in a normal state until it is terminated. Furthermore, it is preferable that the status is fixed to the available status even when the power is turned off and then restarted.
Next, it is determined whether or not the user has finished using the computer (step 1313). If the user has not finished using the computer, the process returns to the control step 1312 to repeat the above process.
When the user has finished using the computer (step 1313), for example, when the computer is powered off, the lock system is terminated.

As described above, according to the fifth embodiment, in addition to the first to fourth embodiments, for example, in a Windows (registered trademark) personal computer, even if the computer is locked, if the correct password is accepted, the password input is accepted, Even when the display interface of the computer main body is in the unusable state, the display interface can be changed to the normal usable state, so that an authorized user of the computer can continue the work.
<Sixth Embodiment>
<Overview>

The sixth embodiment is a computer lock system based on the fifth embodiment and characterized in part. The sixth embodiment is characterized in that it has an inactive section that inactivates a function when the available status is fixed.
<Sixth Embodiment Configuration>

As shown in FIG. 14, the computer lock system according to the sixth embodiment is a computer lock system including a computer main body 1400 and a receiving antenna device 1411. The receiving antenna device 1411 includes an antenna signal receiving unit 1412 and an antenna signal. The computer main body 1400 includes an output unit 1413, an antenna signal acquisition unit 1401, a determination unit 1002, an availability status information holding unit 1003, an enabling unit 1004, an unusable unit 1405, and a control unit. 1406, a password input acceptance unit 1407, a password determination unit 1408, an availability status fixing unit 1409, and an inactivation unit 1410.
<Sixth Embodiment Description of Configuration>
<Embodiment 6 deactivation section>

When the availability status information is fixed to the availability status by the availability status fixing unit 1409, the “deactivation unit” 1410 cannot use the antenna signal acquisition unit 1401 of the computer body 1400, the determination unit 1402, and the unusable unit. By the activating unit 1405, the function is inactivated so that the display interface of the computer main body 1400 cannot make the display normally unavailable. That is, it means stopping the function of the computer lock system.
<Embodiment 6 Operation: Hardware configuration (computer body)>

As shown in FIG. 15, the configuration of the computer of the computer main body is as follows: CPU 1501, non-volatile memory 1502 such as HDD and ROM, main memory 1503 such as D-RAM, interface 1504, display interface 1505, keyboard interface 1506, It is composed of a network interface 1507. The non-volatile memory 1502 stores a program such as an inactivating program. The data includes an antenna signal, an unlock ID, availability status information, and the like. These programs and data are read into the holding area of the main memory 1503 and executed in the work area. The other programs are the same as the configuration of the fifth embodiment shown in FIG.
<Sixth Embodiment Process Flow Reception Antenna Device>

As shown in the right diagram of FIG. 16, when the antenna signal receiving step 1601 and the antenna signal outputting step 1602 are executed, the antenna signal from the receiving antenna device 1411 is input to the computer main body 1400 which is externally connected. The processes of the antenna signal reception step 1401 and the antenna signal output step 1402 are the same as the antenna signal reception step 0501 and the antenna signal output step 0502 of FIG. 5 of the first embodiment, and thus detailed description will be omitted.
<Sixth Embodiment Process Flow Computer Main Body>

As shown in the left diagram of FIG. 16, the operation of the computer main body as described above is to execute an antenna signal acquisition step 1603, a determination step 1604, an enablement step 1605, an disablement step 1606, and a control step 1607. According to this, it is determined whether or not the acquisition unit signal from the antenna signal acquisition unit 1401 as shown in FIG. 3 includes the unlock ID (step 1604), and the enabling step 1605 and the disabling step 1606 are executed. Then, the available status information holding unit 1403 always holds the available status or the unavailable status as the available status information. The processing of processing steps 1603 to 1607 is the same as the processing of processing steps 0503 to 0507 of FIG. 5 of the first embodiment, and thus detailed description thereof will be omitted.

Under the lock control of control step 1607 in the above-described state, a step of determining whether or not the display interface of the computer body is in an unusable state in which the display cannot be normally used is executed (step 1608). If it is not in the unavailable state (step 1608), the process returns to the antenna signal acquisition step 1603.

When the display interface of the computer body is in a state where the display cannot be normally used (unusable state) (step 1608), the input acceptance determination step of determining whether or not to accept the password input by the password input acceptance program is executed. (Step 1609).

When the password input is accepted in the password input acceptance determining step 1609, a password determining step for determining whether the password is a correct password is executed by the password determining program (step 1610).

Next, when the judgment result in the password judgment step 1610 is a judgment result that the password is a correct password, the availability status information of the availability status information holding unit can be forcibly used by the availability status information fixing program. An available status fixing step of fixing the status is executed (step 1611).

In the above password input acceptance judgment step 1609, when the password input acceptance is not accepted, the process returns to the antenna signal acquisition step 1603.

Next, when the availability status fixing unit 1409 fixes the availability status information to the availability status by the deactivating program, the antenna signal acquisition unit 1401 of the computer main body 1400, the determination unit 1402, and the disablement The unit 1405 and the display interface of the computer main body 1400 deactivate the function so that the display cannot be normally disabled (step 1612). That is, it means stopping the function of the computer lock system.
Next, the control is passed to the lock control process in the control program (step 1613). The control program controls based on the available status information, but since the available status information is fixed to the available status, the control is fixed to the available state.
Next, it is determined whether or not the user has finished using the computer (step 1614). If the user has not finished using the computer, the process returns to control step 1613 to repeat the above-described processing.
When the user has finished using the computer (step 1614), for example, when the computer is powered off, the lock system is terminated. However, it may be inconvenient if the lock system operates again when the computer is restarted by turning the power on again after the power has been turned off. It is preferable that the fixation of the status information is reproduced.
<Embodiment 7>
<Overview>

The seventh embodiment is a computer lock system based on any one of the first to sixth embodiments and characterized in part. The seventh embodiment is characterized in that the computer main body and the receiving antenna device externally connected to the computer main body are connected via a USB cable, and power is supplied from the computer main body to the receiving antenna device.
<Embodiment 7 configuration>

As shown in FIG. 17, the computer lock system according to the seventh embodiment is a computer lock system including a computer main body 1700 and a receiving antenna device 1710. The receiving antenna device 1710 includes an antenna signal receiving unit 1711 and an antenna signal. The computer main body 1700 includes an output unit 1713, an antenna signal acquisition unit 1701, a determination unit 1702, an availability status information holding unit 1703, an enablement unit 1704, an unusable unit 1705, and a control unit. 1706, and the computer main body 1700 and the receiving antenna device 1710 externally connected to the computer main body 1700 are connected via a USB cable (interface cable).
<Embodiment 7 Configuration Description>
<Embodiment 7 USB cable connection power feeding>

The computer main body 1700 and the reception antenna device 1710 externally connected to the computer main body 1700 are connected via a USB cable, and the antenna signal output unit 1712 of the reception antenna device 1710 and the antenna signal acquisition unit 1701 of the computer main body 1700 are Signals are transferred using this USB cable, and the receiving antenna device 1710 is powered by this USB cable.

Here, each of the antenna signal acquisition unit 1701 of the computer main body 1700 and the antenna signal output unit 1712 of the reception antenna device 1710 has a USB interface circuit equipped with a USB connector (not shown), and a USB cable should be connected. This allows the device to be recognized by plug & play. That is, the antenna signal acquisition unit 1701 can acquire its own ID information and antenna signal from the antenna signal output unit 1712 of the reception antenna device 1710. As the USB connector, any connector such as USB Type-A, Type-B, Type-C, mini B, and micro B may be used. As the USB interface, interfaces such as USB2.0, USB3.0, and USB3.1 can be used. As power supply capability, USB 2.0 can secure 5 V and 500 mA, USB 3.0 can secure 5 V and 900 mA, and USB 3.1 can secure 5 V and 1000 mA. When the USB power supply is performed, the power used varies depending on the distance of the effective communication range of the receiving antenna device, so the USB interface may be selected according to the required power. If the computer body is a small tablet PC or the like, a USB cable with a micro B connector may be used because the connector is small. If the desired power cannot be obtained from the USB interface of the computer body, connect the power source of the computer body to the AC power source via the AC power adapter instead of battery drive, and supply power from the antenna signal acquisition unit. Is also good.
The other configurations are the same as the configurations of the first embodiment shown in FIG.
<Embodiment 7 Action: Hardware configuration (computer body)>

Since the configuration is the same as that of the first embodiment shown in FIG. 4, description thereof will be omitted.
<Seventh Embodiment Processing Flow>

The flow of processing between the receiving antenna device and the computer main body is the same as the flow of processing in FIG. 5 of the first embodiment, so description will be omitted.

As described above, according to the seventh embodiment, in addition to the first to sixth embodiments, the receiving antenna device externally connected to the computer main body is connected by the USB cable, and power is supplied from the computer main body to the receiving antenna device. Therefore, the receiving antenna device does not need a power supply.
<Embodiment 8>
<Overview>

The eighth embodiment is a computer lock system based on any one of the first to seventh embodiments and characterized in part. The eighth embodiment is characterized in that the antenna signal receiving section of the receiving antenna device is configured to receive a signal from a powerless RFID.
<Embodiment 7 configuration>

As shown in FIG. 17, the computer lock system according to the eighth exemplary embodiment is a computer lock system including a computer main body 1700 and a receiving antenna device 1710. The receiving antenna device 1710 includes an antenna signal receiving unit 1711 and an antenna signal. The computer main body 1700 includes an output unit 1712, an antenna signal acquisition unit 1701, a determination unit 1702, an availability status information holding unit 1703, an enabling unit 1704, an unusable unit 1705, and a control unit. 1706, and the antenna signal receiving unit 1711 of the receiving antenna device 1710 is configured to receive a signal from the powerless RFID 1713.
<Embodiment 8 of the configuration>

The antenna signal receiving unit 1711 of the receiving antenna device 1710 is configured to receive a signal from the powerless RFID 1713. Here, the non-power-supply RFID 1713 may have any shape such as a card type or a wireless tag. For example, it may be a card type for employees or a small device such as a wireless tag.
If the effective communication range between the powerless RFID 1713 and the receiving antenna device 1710 is set to about 1 meter, interference with other receiving antenna devices can be prevented even when a plurality of computer main bodies are installed adjacent to each other. The receiving antenna is preferably a directional antenna. The high-sensitivity orientation of the antenna is preferably oriented toward the seat of the user who operates the computer body.
The other configurations are the same as the configurations of the first embodiment shown in FIG.
<Embodiment 8 Action: Hardware configuration (computer body)>

Since the configuration is the same as that of the first embodiment shown in FIG. 4, description thereof will be omitted.
<Embodiment 8 Processing Flow>
The flow of processing between the receiving antenna device and the computer main body is the same as the flow of processing in FIG. 5 of the first embodiment, so detailed description will be omitted and the points of the eighth embodiment will be described. For example, if a user puts a powerless RFID such as a card-type employee ID or a small powerless RFID such as a wireless tag around the neck or puts it in a pocket of clothes, it is effective to leave the seat while working on the computer. When the communication range is exceeded, the computer is automatically locked, and when the vehicle approaches or returns to the seat, that is, when the effective communication range is entered, the computer is automatically unlocked. This effective communication range is, for example, a range in which the distance from the computer main body to which the receiving antenna device is externally connected is about 1 meter.

As described above, according to the eighth embodiment, in addition to the first to seventh embodiments, the user wears a powerless RFID such as a card-type employee ID card or a small powerless RFID such as a wireless tag on the neck. Or, if you put it in your clothes pocket and you leave your seat while you are working on your computer, you will automatically be locked by the computer, and you will get closer to your seat and within your range. , It will be unlocked automatically. For example, if the distance between the user and the computer body is in the range of about 1 meter, the lock can be released.
<Embodiment 9>
<Overview>

The ninth embodiment is a computer lock system based on any one of the first to eighth embodiments and characterized in part.

As shown in FIG. 18, a computer (system) 1800 including a computer main body, a receiving antenna device externally connected to the computer main body, a display, etc. is a network (wired LAN, wireless LAN, mobile network, cloud network, Internet, broadband). It is connected to a computer 1802 having the same configuration as that of the computer 1800 via a computer 1801 (including the above) and has a function of supporting the network connection of the computer main body.
<Embodiment 9 configuration>

As shown in FIG. 19, the computer lock system according to the ninth embodiment is a computer lock system including a computer main body 1900 and a receiving antenna device 1910. The receiving antenna device 1910 includes an antenna signal receiving unit 1911 and an antenna signal. The computer main body 1900 includes an output unit 1913, an antenna signal acquisition unit 1901, a determination unit 1902, an availability status information holding unit 1903, an enablement unit 1904, an unusable unit 1905, and a control unit. 1906, and further includes a network via signal determination unit 1907 and a network via interface signal output unit 1908.
<Embodiment 9: Description of configuration>
<Embodiment 9: Signal determination unit via network>

The “via-network signal determination unit” 1907 is a connected computer (via a network (including a wired LAN, a wireless LAN, a mobile network, a cloud network, the Internet, a broadband, etc.)) 1909 connected to the signal received via the network ( The display interface of the computer main unit 1900 can be normally used for the acquisition unit signal that is a signal that includes the antenna signal from the antenna signal acquisition unit (see the right diagram in FIG. 18) or does not include the antenna signal from the antenna signal acquisition unit. It is intermittently determined whether or not the unlock ID, which is an ID for establishing the state, is included. Here, the intermittent judgment operation is set within a few seconds to a few tens of seconds in the case of normal work. This realizes a remote desktop, and if the network signal determination unit 1907 determines whether the genuine unlock ID is sent from the computer connected via the network 1909 to the computer main unit 1900 via the network, the computer The display interface of the computer main unit 1900 can be normally used even during the lock of.
That is, the computer main body 1900 transmits and transfers the acquisition unit signal to another computer main body connected to the network 1909.
<Embodiment 9: Interface signal output unit via network>

The “network interface signal output unit” 1908 is an interface in which the interface of the computer main body can be normally used when the network signal determining unit 1907 determines that the unlock ID signal is included. The signal is transmitted to the connected computer via the network (see the left diagram in FIG. 18). The display computer can normally use the display interface by receiving the interface signal via the network, and the remote desktop can be realized. If the computer does not include the unlock ID signal, the computer continues to lock the computer.
<Embodiment 9 Operation: Hardware configuration (computer body)>

As shown in FIG. 20, the configuration of the computer of the computer main body includes a CPU 2001, a non-volatile memory 2002 such as HDD and ROM, a main memory 2003 such as D-RAM, an interface 2004, a display interface 2005, a keyboard interface 2006, It is composed of a network interface 2007. The non-volatile memory 2002 stores programs such as a network via signal determination program and a network interface signal output program. The data includes an antenna signal, an unlock ID, availability status information, and the like. These programs and data are read into the holding area of the main memory 2003 and executed in the work area. The other programs are the same as those in the configuration of the first embodiment shown in FIG.
<Ninth Embodiment Process Flow Computer Main Body>

As shown in FIG. 16, the operation of the computer of the computer body as described above is performed from the antenna signal acquisition unit of the connected computer which is connected via the network to the signal received via the network by the signal determination program via the network. Whether the acquisition unit signal that includes the antenna signal or does not include the antenna signal from the antenna signal acquisition unit includes the unlock ID that is the ID for making the display interface of the computer main body normally usable. A network via signal determination step of intermittently determining is executed (step 2101).

Next, the display interface of the computer main body can be normally used for the acquisition unit signal which is the signal including the antenna signal in the network via signal determination step 2102 or the antenna signal in the network via signal determination step 2102 according to the determination program. A determination step of intermittently determining whether or not an unlock ID, which is an ID for establishing a state, is executed (step 2102).

Next, when the result of the determination in the determination step 2102 is a determination result that the valid release ID is included by the enablement program, the display interface of the computer body normally displays the availability status information of the availability status information holding unit. An enablement step of setting an available status to make it available is executed (step 2103).

Next, when the result of the judgment in the judgment step 2102 is that the effective release ID is not included, the display interface of the computer main body 2100 normally displays the available status information in the available status information holding step on the display. An unavailability step of setting the unavailable status to the unusable state is executed (step 2104).

Next, the control step executes a control step of controlling the display interface based on the availability status held in the availability status information holding section (step 2105).

If the result of the determination by the network via signal determining unit 1907 is that the unlock signal is included, the network via interface signal output unit 1908 outputs the interface signal indicating that the interface of the computer body is normally available. A step of outputting an interface signal via a network for transmitting to the connection computer via the computer is executed (step 2106).

If the user does not finish using the computer (step 2107), the above-described processing is returned to the network-routed signal determination step 2101 and repeated. Further, when the use of the computer is ended (step 2107), for example, when the power of the computer is turned off, the processing is ended.
When the power of the computer is turned on again, the computer lock system is activated, and the locked state and the unlocked state are automatically set based on the unlock ID and user status information assigned to the computer without any user operation. Controlled.

As described above, according to the ninth embodiment, in addition to the first to eighth embodiments, the computer main body can be connected to the network, so that the lock and unlock control by the remote computer connection can be realized.

As described above, according to the first to ninth embodiments, in the computer lock system including the computer main body and the receiving antenna device externally connected to the computer main body, the safety can be maintained even if the receiving antenna device is removed. A computer lock system can be provided.

Claims (12)

A computer lock system comprising a computer body and a receiving antenna device externally connected to the computer body,
The receiving antenna device is
An antenna signal receiving unit that receives an antenna signal that may include noise and no signal wirelessly,
An antenna signal output unit that outputs the received antenna signal to the computer body,
Consists of
The computer itself is
An antenna signal acquisition unit for acquiring an antenna signal output from the antenna signal output unit,
A lock that is an ID for making the display interface of the computer main body normally usable for the acquisition unit signal that includes the antenna signal from the antenna signal acquisition unit or does not include the antenna signal from the antenna signal acquisition unit. A determination unit that intermittently determines whether the release ID is included,
An availability status information holding unit that holds availability status information indicating whether or not the display interface of the computer main body determined based on the acquisition unit signal is in a normally available state,
If the determination result of the determination unit is a determination result that the valid release ID is included, the availability status information of the availability status information holding unit is set so that the display interface of the computer main body can be normally used. An enablement unit that sets the available status,
If the determination result of the determination unit is that the valid release ID is not included, the availability status information of the availability status information holding unit indicates that the display interface of the computer body cannot normally use the display. An unusable unit that has an unusable status to
A control unit that controls the display interface based on the available status information held in the available status information holding unit;
Computer lock system having a. The antenna signal acquisition unit, the determination unit, the availability status information holding unit, the enablement unit, the disablement unit, and the control unit of the computer body are configured to be always in operation while the computer is operating. The computer lock system according to claim 1, which is provided. The antenna signal receiving unit and the antenna signal output unit of the receiving antenna device are configured to always be in an operating state when they are externally connected to a computer main body in operation. Computer lock system. The computer itself is
A screen saver unit that outputs a screen saver screen when there is no input from the interface for a predetermined time,
When the operation of the control unit and the operation of the screen saver unit conflict with each other, a conflict adjustment unit that gives priority to the operation of the control unit,
The computer lock system according to claim 1, further comprising: When the result of the determination by the determination unit is that the valid release ID is not included, and the display interface of the computer body is in a state where the display cannot be normally used, the password input reception unit that receives the password ,
A password judgment unit for judging whether the password is correct,
If the result of the judgment by the password judgment unit is that the password is correct, the availability status fixing unit forcibly fixes the availability status information in the availability status information holding unit to the availability status. When,
The computer lock system according to any one of claims 1 to 4, further comprising: When the available status information is fixed to the available status in the available status fixing unit, the display interface of the computer main body displays the display by the antenna signal acquisition unit of the computer main body, the determination unit, and the disabling unit. The computer lock system according to claim 5, further comprising a deactivating section that deactivates a function so that the function cannot be normally used. The computer main body and the receiving antenna device externally connected to the computer main body are connected via a USB cable, and the antenna signal output unit of the receiving antenna device and the antenna signal acquisition unit of the computer main body are used for signal transmission via this USB cable. 7. The computer lock system according to claim 1, wherein the receiving antenna device is supplied with power by the USB cable. 8. The computer lock system according to claim 1, wherein the antenna signal receiving section of the receiving antenna device is configured to receive a signal from a powerless RFID. The computer itself is
The signal received via the network includes the antenna signal from the antenna signal acquisition unit of the connected computer connected to the network, or the acquisition unit signal is a signal not including the antenna signal from the antenna signal acquisition unit to the computer. A via-network signal determination unit that intermittently determines whether or not an unlock ID, which is an ID for making the display interface of the main body available, is included;
If the result of the determination made by the signal via the network determination unit is the result that the unlock signal is included, an interface signal indicating that the interface of the computer itself is normally available is transmitted to the connected computer via the network. Interface signal output section via network,
The computer lock system according to claim 1, further comprising: The computer main body according to claim 1. A method of operating a computer main body of a computer lock system, comprising: a computer main body; and a receiving antenna device externally connected to the computer main body.
The receiving antenna device is
An antenna signal receiving unit that receives an antenna signal that may include noise and no signal wirelessly,
An antenna signal output unit for outputting the received antenna signal to the computer main body,
Computer,
An antenna signal acquisition step for acquiring an antenna signal output from the antenna signal output unit,
A lock that is an ID for making the display interface of the computer main body normally usable for the acquisition unit signal that includes the antenna signal in the antenna signal acquisition step or does not include the antenna signal in the antenna signal acquisition step A determination step of intermittently determining whether or not the release ID is included,
An availability status information holding step of always holding availability status information indicating whether or not the display interface of the computer main body determined based on the acquisition unit signal is in a normally available state;
If the result of the determination in the determination step is that the valid release ID is included, the availability status information in the availability status information holding unit is set so that the display interface of the computer main body can be normally used. An enablement step with an availability status,
If the result of the determination in the determination step is that the valid release ID is not included, the availability status information in the availability status information holding step indicates that the display interface of the computer body cannot normally use the display. An unusable step with an unusable status to
A control step of controlling the display interface based on the available status information held in the available status information holding step,
How to operate the computer body to operate in. A computer main body, a receiving antenna device externally connected to the computer main body, an operation program of the computer main body of a computer lock system,
The receiving antenna device is
An antenna signal receiving unit that receives an antenna signal that may include noise and no signal wirelessly,
It has an antenna signal output unit that outputs the received antenna signal to the computer main body,
Computer,
An antenna signal acquisition step for acquiring an antenna signal output from the antenna signal output unit,
A lock that is an ID for making the display interface of the computer main body normally usable for the acquisition unit signal that includes the antenna signal in the antenna signal acquisition step or does not include the antenna signal in the antenna signal acquisition step A determination step of intermittently determining whether or not the release ID is included,
An availability status information holding step of always holding availability status information indicating whether or not the display interface of the computer main body determined based on the acquisition unit signal is in a normally available state;
If the result of the determination in the determination step is that the valid release ID is included, the availability status information in the availability status information holding unit is set so that the display interface of the computer main body can be normally used. An enablement step with an availability status,
If the result of the determination in the determination step is that the valid release ID is not included, the availability status information in the availability status information holding step indicates that the display interface of the computer body cannot normally use the display. An unusable step with an unusable status to
A control step of controlling the display interface based on the available status information held in the available status information holding step,
The operation program of the computer main body to be operated by.

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